Cetrariella commixta (Nyl.) A. Thell & Kärnefelt
Syn.: Cetraria commixta (Nyl.) Th. Fr., Melanelia commixta (Nyl.) A. Thell, Parmelia commixta (Nyl.) Th. Fr., Platysma commixtum Nyl.
Lichenised.
Substrate: siliceous rocks
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the nival belt (above the lower limit of perennial snow and glaciers)
Note: a circumpolar, arctic-alpine lichen found on hard siliceous rocks wetted by rain in upland areas; somehow more bound to cold-humid sites than the superficially similar Melanelia hepatizon; widespread in the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Niederösterreich (incl. Wien); Switzerland: Bern; Graubünden; Uri; Valais; France: Haute-Alpes; Alpes-Maritimes; Isère; Savoie; Haute-Savoie; Italy: Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta;